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Area array projection device and depth camera

A projection device and area array technology, applied in the optical field, can solve the problems of difficult integration and large volume, achieve good optical projection effect, and improve the effect of light and thin

Inactive Publication Date: 2018-05-01
SHENZHEN ORBBEC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, an infrared projector is generally composed of a light source, a lens, and a diffractive optical element, and is used to project an infrared image of a certain pattern to the target space, and the light source in the prior art is generally a single laser light source, which is large in size and difficult to Integrate into smaller projectors

Method used

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  • Area array projection device and depth camera
  • Area array projection device and depth camera
  • Area array projection device and depth camera

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0023] see figure 1 , figure 1 It is a structural schematic diagram of an embodiment of the area array projection device of the present invention. Such as figure 1 As shown, the area array projection device 10 includes: an area array light source 12 , a diffractive optical element 14 and a lens 16 .

[0024] Wherein, the area light source 12 further includes a plurality of light emitting elements 122, and the plurality of light emitting elements 122 are all...

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Abstract

The invention discloses an area array projection device and a depth camera. The area array projection device comprises an area array light source and a diffractive optical element, wherein the area array light source comprises multiple luminous elements and is used for emitting laser, the diffractive optical element is used for beam expansion on the laser emitted by the area array light source soas to convert the laser into patterned laser, the multiple luminous elements are arranged to form a first optical pattern, a single beam of laser is expanded through the diffractive optical element soas to form a second optical pattern, the pattern of the patterned laser is a compound optical pattern compounded by the first optical pattern and the second optical pattern, and the first optical pattern, the second optical pattern and the compounded optical pattern comprise multiple beams. Through adoption of the area array projection device and the depth camera, a better optical projection effect is delivered based on a light source of smaller volume, a smaller device can realize integration, and the device is thinner and lighter.

Description

technical field [0001] The invention relates to the field of optics, in particular to an area array projection device and a depth camera. Background technique [0002] Laser projection has been used in many occasions. For example, laser projection is used to generate structured light with a pattern and project it on an object, obtain the projected pattern on the object and obtain the depth information of the object accordingly. [0003] In the prior art, a depth camera can be composed of an infrared projector, an infrared camera and a processor. Among them, an infrared projector is generally composed of a light source, a lens, and a diffractive optical element, and is used to project an infrared image of a certain pattern to the target space, and the light source in the prior art is generally a single laser light source, which is large in size and difficult to Integrate into smaller projectors. Contents of the invention [0004] The invention provides an area array proj...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/20G03B17/54
CPCG03B17/54G03B21/2013G03B21/2033
Inventor 黄源浩刘龙肖振中许星
Owner SHENZHEN ORBBEC CO LTD
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